Kev sib raug zoo ntawm Ink Viscosity Thiab Cov Teeb Meem Zoo Ntawm Sab Nraud Printing Nrog Silver Art Paper

Kev sib raug zoo ntawm tus number case viscosity thiab cov teeb meem zoo sib xws ntawm Inner Frame Printing With Silver Art Paper

Hauv kev luam ntawv yas, kev tswj cov number case printing viscosity yog qhov tseem ceeb heev. Tshwj xeeb tshaj yog nyob rau hauv high-speed rotary gravure printing, number case printing viscosity tswj yog tsim nyog, thiab kev hloov cov xim, qias neeg phaj, luam ntawv gloss, number case txheej firmness, static hluav taws xob thiab lwm yam teeb meem zoo heev muaj feem xyuam rau lub yield ntawm luam ntawv thiab ntau lawm efficiency. Yuav ua li cas tswj tus number case printing viscosity, nyob rau hauv thiaj li yuav coj mus rau hauv tus account ntau yam, los xyuas kom meej qhov zoo ntawm printing, uas yuav tsum tau peb to taub lub number case printing viscosity thiab cov teeb meem zoo ntawm kev sib raug zoo.

(a) number case printing viscosity thiab pigment hloov nyhuv

Raws li peb paub, yas zaj duab xis luam ntawv number case yog tsim los ntawm cov organic solvents, linkers, pigments, additives, AIDS, thiab lwm yam. Nyob rau hauv cov txheej txheem luam ntawv, cov xim hloov pauv cov nyhuv yog feem ntau cuam tshuam nrog kev luam ntawv viscosity ntawm tus number case. Kev xyaum tau ua pov thawj tias tus number case luam ntawv viscosity muaj qee qhov ntau (11 ~ 24s, 3 # Chaen khob), nyob rau hauv qhov ntau, qhov ntau dua tus number case luam ntawv viscosity, qhov ua rau cov xim hloov xim. Thaum luam ntawv number case viscosity loj dhau lawm, cov txheej txheem number case yog oversaturated, cov xim xim xws li cov dej tsis zoo, tsis tuaj yeem sib cais, tab sis cov huab tau tshwm sim, yooj yim rau kev sib sau ua ke, yog li cov xim yuav tsis tuaj yeem nkag mus rau hauv lub phaj. mesh taw tes, txawm yuav tsis tau mus rau hauv lub qhov tsua nyob rau hauv lub net, cia nyob ib leeg hloov, qhov no yog lub version ntawm qhov tshwm sim. Yog li ntawd peb cia li cia resin, pigments thiab organic hnyav xws li colloid system tsis hypersaturated lub xeev, tab sis nyob rau hauv lub saturated los yog unsaturated lub xeev, yuav ua rau pigment tshuaj xws li zoo dispersed nyob rau hauv daim ntawv ntawm uniform zoo colloid system, thiaj li hais tias cov xim muaj peev xwm ua rau cov xim pigments xws li dispersed nyob rau hauv daim ntawv ntawm uniform zoo colloid system. smoothly nyob rau hauv thiab tawm ntawm lub qhov tsua, cov teeb meem yuav daws tau.

Qee cov tuam txhab luam ntawv qhia kom tswj cov number case luam ntawv viscosity hauv 15 ~ 18s (3 # Chaen khob), tab sis hauv kev xyaum, tshwj xeeb tshaj yog nyob rau hauv high-speed gravure tshuab luam ntawv (luam ceev hauv 100 ~ 260m / min), txhawm rau xyuas kom zoo. Hloov cov nyhuv, thiab tuaj yeem luam tawm tau ntev, txhim kho kev ua haujlwm ntau lawm, Feem ntau hauv 11 ~ 15s (3 # Chaen khob) kom pom lub xeev zoo tshaj plaws ntawm number case printing viscosity point.

(2) number case printing viscosity thiab qias neeg phaj tsis ua hauj lwm

Nyob rau hauv yas zaj duab xis gravure printing, kuj feem ntau qias neeg phaj teeb meem. Qhov tshwm sim yog tias cov qauv uas tsis yog luam tawm ntawm lub phaj cov menyuam kuj tseem yuav raug stained nrog cov ntaub qhwv ntsej muag (resin engrafted pigment), thiab xa mus rau cov yas zaj duab xis, ntawm cov ntawv luam tawm zoo li ib daim ntawv lossis cov av tawm. Lub hauv paus ntawm cov qias neeg qias neeg muaj feem xyuam rau qhov hardness ntawm lub scraper, lub siab ntawm lub scraper, kev sib cuag lub kaum sab xis ntawm lub scraper, qhov zoo ntawm lub phaj roller, thiab cov viscosity ntawm cov ntawv luam ntawv. Thaum lub viscosity ntawm number case luam ntawv loj dhau lawm, lub fluidity ntawm pigments thiab lwm yam khoom tsis zoo, tsis tuaj yeem sib npaug sib npaug, yooj yim rau pawg ua ke, nyob rau hauv qhov kev kub ceev ntawm lub scraper thiab phaj lub tog raj kheej, scraper thiab phaj lub tog raj kheej yog yooj yim rau kev puas tsuaj, uas yog yooj yim rau linear av.

Nyob rau tib lub sijhawm, vim hais tias cov resin tseem nyob rau hauv lub xeev ntawm supersaturation, ntau cov resin coalesced ua ke, thiab affinity ntawm resin rau lub phaj roller, nyob rau hauv qhov kev txiav txim ntawm lub scraper siab, cov resin yuav nruj nreem lo rau lub phaj. phaj roller (resin nrog cov xim), yog li yuav muaj cov av flake. Feem ntau, qhov me me ntawm number case printing viscosity, qias neeg version phenomenon yog tsis tshua muaj tshwm sim.

(3) number case printing viscosity thiab printing gloss thiab number case txheej ceev ceev

Yog tias tus number case luam ntawv viscosity tsawg dhau, qhia tau hais tias cov ntsiab lus ntawm cov kuab tshuaj organic hauv tus number case, thiab cov resin, pigment thiab lwm yam khoom muaj tsawg, yog li ntawd thaum qhuav, nws tsis tuaj yeem tsim ib zaj duab xis du, ua rau cov ntawv luam tawm zaum kawg dawb. , tsis muaj luster. Yog li, yog tias cov ntawv luam ntawv yuav tsum muaj qhov zoo dua qub, feem ntau xav txog kev siv cov number case luam ntawv loj dua viscosity (13 ~ 19s, 3 # Chaen khob), uas yog, resin, pigment muaj pes tsawg leeg kuj ntau dua kom tau raws li qhov xav tau ntawm kev luam ntawv.

Ink hloov mus rau yas zaj duab xis tom qab tsim cov kua nplaum zaj duab xis kom qhuav, cov xim tuaj yeem txuas mus rau saum npoo ntawm cov yas zaj duab xis, thiab cov resin yog cov khoom tseem ceeb los ua cov xim pleev xim rau cov yas zaj duab xis. Yog li ntawd, pigment adhesion firmness thiab number case printing viscosity. Qhov kev faib ua feem ntawm resin thiab pigment nyob rau hauv tus number case yuav tsum tsis txhob loj heev, los yog me me, tab sis yuav tsum nyob rau hauv lub li ib txwm ntau yam, thiaj li yuav xyuas kom meej tias cov xim daim ntawv cog lus ruaj khov.

(4) number case printing viscosity thiab electrostatic phenomenon

Nyob rau hauv kev saib xyuas ntawm ib txwm ambient humidity, number case printing viscosity nyob rau hauv 16s (3 # Chaen khob) saum toj no, feem ntau yuav tsis tshwm sim electrostatic phenomenon; Thaum tus number case luam ntawv viscosity qis dua 16s (3 # Chaen khob), nrog rau qhov txo qis ntawm cov viscosity, electrostatic phenomena xws li hwj txwv zoo, speckle duab, ntug repulsion, ya tus number case, tsis zoo, thiab cov xim tsis xws luag dej stain zoo tshwm sim thiab phem dua. .

Yog li ntawd, peb feem ntau tsim kom muaj lub xeev zoo tshaj plaws ntawm number case printing viscosity ntawm 11 thiab 17s (3 # Chaen khob). Yog tias muaj qhov tshwm sim ntawm electrostatic nyob rau hauv cov kab no, raws li lub hauv paus ntsiab lus ntawm kev sib koom ua ke, feem ntau peb tsis tas yuav txhim kho tus cwj mem luam ntawv viscosity kom tshem tawm cov hluav taws xob zoo li qub, tab sis los ntawm kev tswj hwm ib puag ncig cov av noo, hloov cov qauv ntawm cov khoom sib xyaw. , txhim kho kom tshem tawm cov hluav taws xob zoo li qub, siv cov tshuaj tiv thaiv kab mob thiab lwm txoj hauv kev los tshem tawm cov hluav taws xob zoo li qub. Tsuas yog nyob rau hauv txoj kev no peb tuaj yeem txhim kho efficiency thiab tawm los thaum ua kom zoo.